| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas concentration detection sensor that can accurately detect the concentration of a small amount of combustible gas (especially, a hydrocarbon gas) even under high-concentration oxygen or variation in oxygen concentration. <P>SOLUTION: The gas concentration detection sensor has an electrode containing one of perovskite type oxide expressed by (A<SB>1-x</SB>B<SB>x</SB>)(C<SB>1-y</SB>D<SB>y</SB>)O<SB>3-z</SB>, (Ce<SB>1-x</SB>P<SB>x</SB>)O<SB>2-z</SB>-based oxide, and a mixture containing them and a laminate [A: La, Pr, Ce, etc.; B: Sr, Ce, Ca; C: Cr, Mn, Fe, etc.; D: Cr, Ni, Mg, etc.; P: La, Pr, Nd, etc.; 0≤X≤0.5, 0≤Y≤0.5]. <P>COPYRIGHT: (C)2003,JPO |
